Christina is the newly minted General Manager of Social Networking at MySpace. Previously she was Principal Product Manager at Linkedin, running the activity stream, communication products, and launched the events application. Before that she founded a startup where she developed the collaborative blogging tool PublicSquare. As well, she founded Boxes and Arrows, an online magazine of design and the Institute for Information Architecture; and built the Search and Marketplace design team at Yahoo!, leading reinventions of the search and shopping product designs. She is also a teacher, having written the best selling Information Architecture: Blueprints for the web and has spoken on the topic of the human experience in information spaces at conferences worldwide.